Spark-extinguisher.



No. 642,384. 7 Patented Jan. 30, I900.

I J. STINE. SPARK EXTINGUISHEB.

(Application filed Sept. 9, 1899.)

(No Model.)

WITNESSES.-

ATTO'RNEY.

I 'NITED STAT S ATENT FFICE.

JOHN STINE, OF MOUNT AUBURN, INDIANA.

SPARK-EXTINGUISHER.

SPECIFICATION forming part of Letters Patent No. 642,384, dated January 30, 1900.

Application filed September 9, 1899. Serial No. 729,940. (No model.)

To aZZ whom it may concern:

Be it known that I, JOHN STINE, a citizen of the United States, residing at Mount Auburn, in the county of Shelby and State of Indiana, hat e invented certain new and useful Improvements in Spark-Extinguishers; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

My invention relates to an appliance for the tops of smoke-stacks, more particularly of the short type usually employed with the boilers of locomotives and portable engines, and it consists in devices of new and novel form of construction and arrangement whereby sparks emitted from such stacks may be extinguished or so reduced in size as to render them unobjectionable; and the invention consists, further, in the parts and combination and arrangement of parts hereinafter fully described, and pointed out in the claim.

My object is to provide a spark-extinguisher of this character which may be cheaply constructed and readily applied either to new or to old stacks and which may be operated without attention and incidental expenses.

Referring to the drawings, Figure 1 represents a perspective view of my appliances in connection with the top of a smoke-stack, a fragment only of which is shown; Fig. 2, a central vertical sectional view; Fig. 3, an elevation of the principal parts without the casing, and Figs. 4, 5, and 6 detail views.

Similar letters of reference throughout the several figures in the drawings designate similar parts.

In construction I provide a frame adapted to be attached to the top of a smoke-stack or chimney, and centrallyin the frame is a perpendicular axle suitably supported, upon which is rotatably mounted one or more devices substantially similar to a wind-wheel having feathered or oblique-angled blades adapted to be acted upon to cause rotation by the blast of the exhaust-steam passing out of the stack, the sparks being carried with the blast against the blades of the wheel or wheels or alternate wheel-so that the wheels rotate in opposite directions.

A clear understanding of my'invention as I preferably construct it will be had by ref erence to the drawings, in which A designates the smoke-stack, and Bthe base-band or ring, fitting over the exterior of the stack after the usual ring belonging to a stack has been removed or omitted, rivets a or bolts securing one to the other, C designating vertical supporting-posts secured to the base-band B, and D designating the top ring of the frame, having a cross-bar d preferably arched, to which is secured the stationary axle E so as to depend therefrom. The axle E is preferably cylindrical, of uniform diameter throughout the portion serving as bearings for therotating wheels; but the upper end E and the lower end E are of smaller diameter, so as to provide shoulders u and '0, and they preferably having screw-threads to receive screwnuts e and f. At about the longitudinal center is a collar F, either forged integrally or fitted thereto and secured by means of a setscrewl or otherwise. At the upper portion of the axle is a collar 5, which in case the collar F is removable may be made integrally or rigidly attached, but must be removable if the collar F is permanently attached. Near the bottom of the axle is a removable bearing-collar G, seated against the shoulder v and between'it and the nut f. This suspending of the axle from the top'is to avoid interposing supports at the bottom which would prove obstructive to the blast against the wheel-blades. The bar d is bored to receive the end E to the shoulder to. The posts 0 are attached at the top to the ring D by means of rivets s or bolts and are turned over to form brackets h.

The wheels, which rotate about the axle E, each have a hub H or I alike and a bore m or 'n, and each hub has a series of arms '5 radiating therefrom, but those on one wheel are flared oppositely to those on the other hub, and to these arms are attached sheet-iron blades J or K, the blades J being set at an oblique angle, so that they lean at the top toward the right hand as they are viewed, while the blades K lean at the top toward the left-hand side. The blades are preferably long enough to extend nearly to the posts G to cover the top of the stack, although not so shown in the drawings proportionally, to avoid confusion. Obviously the blades may be cast or formed integrally with the hubs, being immovable in themselves. The hubs are usually placed upon the axle at the ends thereof, except when a removable collar F is employed, when they may both be put on the axle from the lower end thereof, and the collar F prevents friction between the two hubs.

' The casing L is made in the form of a sheetiron tube slightly longer than the posts 0 and is greater in diameter than the stack A. It is secured to the brackets h, as by rivets tor bolts, and extends down over the top of the stack with which it is used, and is for the purpose of providing an abutment against which some of the sparks are thrown; but in some cases good results have been obtained without the use of the casing. It, however, provides at least an ornamental inclosure, which may be desirable in many cases.

The extinguisher may be employed to advantage upon any smoke-staek or chimney in which is a strong draft; but it is more especially effective where there is a forced draft by means of the exhaust-steam or otherwise, as the sparks are forced against the under faces of the rotating blades and the fire is beaten out of them wholly or they are broken up, so as to prevent damage by them.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is

In a spark-extinguisher, the combination of the smoke-stack, the base-band secured to the smoke-stack,the supporting-posts secured at their lower ends to the base-band and having their upper ends turned outward and downward, the top ring secured to the upper portions of said posts and having the arched cross-bar bored centrally, the axle secured at its upper end to said bored cross-bar and having the bearing-collar at its lower end and the intermediately-disposed collar, the windwheels on said axle, and the casing attached at its upper end to the downwardly-turned portions of said posts and inclosing said wheels and said posts, substantially as show u and described.

In testimony whereof I aflix my signature in presence of two witnesses.

JOHN STINE.

lVitnesses:

ISAAC CARTER, JAMES C. BENNETT. 

